Issue #7533 has been reported by ileitch (Ian Leitch).

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Bug #7533: Oniguruma hates the letter 's' :(
https://bugs.ruby-lang.org/issues/7533

Author: ileitch (Ian Leitch)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0dev (2012-12-08) [x86_64-darwin12.2.0]


MRI 2.0.0dev (2012-12-08), MRI 1.9.3-p327, Rubinius f76d3f67, JRuby 1.7.1 (1.9.3)

>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> nil
>> "t.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> 0
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/
=> 0

MRI 1.8.7-p371

>> $KCODE
=> "NONE" 
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> 0
>> $KCODE = 'UTF8'
=> "UTF8"
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> 0

Rubinius f76d3f67, JRuby 1.7.1 (1.8.7)

>> $KCODE
=> "NONE" 
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> 0
>> $KCODE = 'UTF8'
=> "UTF8"
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> nil
>> "t.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/i
=> 0
>> "s.net" =~ /\A[^\W_]+([-.][^\W_]+)*\.[a-z]{2,6}\.?\Z/
=> 0


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